Derheide



iinrrn Sf'rirrns HEINRICH HALTAUFDERHEIDE, OF CASSEL, vPRUSSIA, GERMANY( DOOR- HINGE.

SPECIFICATION forming part of Letters `Patent No. 283,601, dated August 21, 1883.

YApplication 'led Juno 22, 1883. (No model.) Patented in Germany May 14, 1882, No. 22,226.

. To ali whom it may concern.-

. in Door-Hinges, of which the following is a specification.

Y This invention relates to certain improvements in the construction of the so called rising door-hinges, and the invention consists of a door-hinge the pintle of which is formed of two spirally-bent sections7 of which the lower pintle-seotion is secured to thesocket of the leaf applied to thedoor-casing, while the upper section is applied to the socket of the door-leaf, the lower end of the upper1 pintle section turning into the xed pintle-section of the lower leaf, so as to rise or screw down in the same when opening or closing the door. The spirally-bent pintle is obtained by taking a steel or iron rod of semicircular cross-section and doubling it up while at red heat, so as to form a centrally-split cylindrical rod. One end of this doubled-np rod is placed into a vise, and the other end turned once or twice on its aXis.- Then the lso twisted rod has cooled off, one semi section of the same is` sawed transversely at a rpoint 4midway of its length. The so cut-off portion is detachedand secured to the leaf or" the door-casing, while t-he longer part forms the'intermeshing pintlesection of the door-leaf, as will more fully appear hereinafter.

In the accompanying drawings, Figures 1 and2 represent side elevations, partly in section, of my improved door-hinge, showing it respectively in normal and in raised positions. Fig. 3 is a horizontal section of the hinge; and Figs. e, 5, G, and 7 are details illustrating the progressief the formation of the pintle and the sections of the same.

Similar letters of reference indicate correspending parts.

Referring to the drawings, a represents the fixed leaf of my improved door-hinge, which is applied to the door-casing, and b is the movable leaf applied to the door. Each leaf t and b is provided witha sleeve or socket, cb, respectively, for the pint-le d, which is composed of two spirally-bent pintle-sections, d d2, that are made according to the method to be here- 1 inafter described. The lower shorter pintle section, d, is retained by a recess, d3, at its lower end, on the recessed shoulder ofthe bottom plug, e, of the socket c', asshown in Figs. l and 2. The lower pintle-seotion, d', is further secured at its upper end to the socket c by a pin, di that passes through the socket a', so as to hold the pintle-section d securely in position in connection with the shoulder of the bottom plug, e. The lower part of the socket a forms at the same time a receptacle for the oil by which the pintle-sections d d2 are lubricated. The upper pintle-section, di, is applied to the sleeve or socket b of the door- `leaf Z) by means of one or more pins or keys, j'. VTo obtain the spirally-bent pintlesections d" di an iron or steel rod of semicircular crosssection is. heated to red heat and'then doubled up, so that the flat faces thereof come in contact, as shown in Fig. 4. A split cylindrical rod is thus obtained, which is next clamped at one end into a vise, and taken hold ofat the other end by suitable tongs and twisted once or twice around its axis, as indicated in Fig. 5. After the so doubled up and twisted rod d has cooled off one-half of the same is cut transversely midway of its length by means of a metal saw, and the shorterpintle-section, d', removed from the longer pintleseetion, d'3, as shown in Figs. Gand 7. The longer pintlosection, d2, remains doubled up at its upper part, as shown in Figs. 2 and 6. The shorter pintle-section, d,is, as before described, secured to the plug e of the socketc of the leaf a of the door-casing,whilethe longer pintle-section, di, is fastened to the socket b ofthe leaf b of the door after the pintle-sections d d2 have first been screwed one into the other, as shown in Fig. l. In opening the door the upper pintlesection, cl2, vrises on the lower pintle-section, whereby the door is raised, while in closing the door the upper pintle-section screws into the lower pintle-section.

The advantages of the described door-hinge .are las follows: First, an easy automatical closing of the door; second, a strong and reliable rising hinge; third, any part of the pint-le can be easily replaced when worn out by use, as it does not form a permanent part of the leaf.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. An improved rising door-hinge, which IOO consists of a leaf,` a, applied to the door-casing,

f a leaf, b, applied to the door, said leaves having sleeves a and b', respectively7 and a pintle composed of a lower spirally-loent pintlesection secureddrgidly to the sleeve of the leaf a, and a longer spirally-bent pintle-section secured to the sleeve of the leaf b, said spirallybent sections screwing into or out of each other on opening or closing the door7 substan- 4 tially as set forth.A I

2. In a rising door-hinge7 a pintle composed of a sprally-bent lower part of semiciroular ssamm' cross-section and of an upper spirally-bent pintls-section7 the lower part of which screws into the lower pintle-seotion and is doubled up at I 5 its upper part, substantially as described.

In testimony whereof I have signed 'my name to this specification in the presence of two subscrbing witnesses.

HEINRICH HALTAUFDERHEIDE.

Witnesses; v

FRIEDRICH PHIL. SoHMIIzsPAIIY, J. GRUND. 

